Stop motion for yarn handling machines



May 8, 1945.

A. E. WINSLOW STOP MOTION FOR YARN HANDLING MACHINES Filed Nov. 3, 1943 4 Sheets-Sheet l lN\ /ENTOR E. Was/0w m, ATTORNEYS y 8, 1945- A. E. WINSLOW 2,375,605

STOP MOTION FORY YARN HANDLING MACHINES Filed NOV- 5, 1943 4 Sheets-Sheet 2 iNVENTOR ATTORNEYS M y 8, 1945- A. E. WINSLOW 2,375,605

STOP MOTION FOR YARN HANDLING MACHINES Filed Nov. 3, 1943 4 Sheets-Sheet 5 5: n -g/lhllmlgggll -INVENTOR .IZe/QE Wj'ds/ow y 1945- I A. E. WI NSLOVIV 2,375,605

STOP MOTION FOR YARN HANDLING MACHINES Filed Nov. s, 1943 4 Sheets-Speet 4 /9 a a INVENTOR I fierffl lZi/rs/ow BY mlbw" m I ,g I ATTORNEYS PatentedMay-8, 194s I 2,375,605 s'ror MOTION roa YARN mmprmo moms Albert E. Winslow, Norwich, Com, assignmto Atwood Machine Company, a corporation of Connecticut Application November s, 194:, Serial No. 508,817

50mins.

This invention relates to a yarn handllngmachine, more "particularly to a ring twister andto the stop motion which is associated with the same. I

In this twister there is used a supply package having a plurality of parallel wound yarns, one

of these is lead'to one spindleand another to another spindle. If either of the yarns from the common supply package should break the other yarn or yarns may be drawn from the supplypackage causing the package to rotate with a consequent waste of length of both the broken and unbroken yarns until the break has been remedied. I

One of the objects of this invention is to operate from each of the individual yarns which come from the supply package a control -ior the supply ing the spindle mounting and drive therefore as; well as the supply package and its arrangementwith respect to drive;

Fig. 6 is a view taken on substantially line 6-8 ofFig. 5;

Fig. 7 is a section on line 1-1 of Fig. 8; Fig. 8 is a sectional view through the mounting of the spindle.

package so that should either one of these ends break the supply package will be stopped.

Another object of this invention is to connect the stop motion for the separate and individual yarns after separated from the supply package -so that they will operate in unison or may be reset in unison.

A more specific object of the invention is to provide a drive and brake arrangement for the This twisting frame has a plurality of mandrels extending axially towards the operator when in front or the machine upon which supply packages are mounted. Each of these mandrels is rotated by means of a pulley from a belt which extends the length or the machine and has one of its surfaces engaging each of these pulleys to drive the same; My stop mechanism is so arranged thatthe belt is withdrawn from the particular drive pulley which drives the supply package having the broken end and at the same time supply package operable together for controlling the supply package. V

Another object of the invention is to stop the delivery package spindle with the stopping of the supply package.

Another object of the invention is to provide a stop motion which will be extremely simple in construction and positive in its operation.

With these and other objectsin view, the invention consists of certain-novel features of construction, as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawings: v

Fig. 1 is a face view showing in elevation'a .fragmental portion of a twisting frame illustrat- II from which the guide bracket Ilextends (see the belt is withdrawn a' brake is applied to the drive pulley to stop the operation of the same and simultaneously the take up spindle is withdrawn from operation and stopped. Trigger means engaged by each of the individual yarns serve to control the brake and idler pulley which control the belt which drives the man rel. upon which the supply package is mounted and also the spindle drive. I

with reference to the drawings ill designates a stand intermediate the ends of the frame which provides a support for the horizontal angle beam Fig. 2) providing a bearing l3 for the reciprocating guide board rods It for moving the guide board l5 and guide It relative to the spindle 9 ing the supply package, the spindle, and the stop motion mechanism for the supply package;

Fig. 2 is a sectional view through a fragmental portion of a twisting frame looking at right angles to the showing of Fig. 1 and showing sub-.

stantially the same parts as shown in Fig. 1;

Fig. 3 is a view similar to Fig. 1 showing in sectionthe pulley on the drive shaft which oper ates the supply package and the movable parts a of the stop motion; s

Fig. 4 illustrates the operating rod for resetting the stop motion and the foot pedal for operating the same;

Fig. 5 is a sectional view 01' the frame illustratand the take up or delivery package I! thereon. At the upper end of the frame standard there is the horizontal framework i8'su'pported by the' stand 10 and comprising an ,angle bar IL! and top board 20. This'framework is of course duplicated on the other side ofthe machine which supports similar mechanism in back to back relation, but one-halt being illustrated in Fig. 2

A hearing 2| is fixed to the framework 18 within the angle iron-i9 and rotatably supports. the

shaft 22 upon which the supply package 23 is fixed by suitable mounting mechanism. The yarn 24, 24' delivers from this supply package," which is wound with a plurality of strandsin parallel relation, one end 24 to the spindle i1 and the other end 24' to the spindle'l'l'. I

The several shafts 22 have mounted upon them drive drums 25 to engage the back 26 of the V- belt 2'! which extends lengthwise oi' the frame,

belt 21 is rotatably carried by the bracket on axle '33 so that as the bracket is pivoted counterclockwise as viewed in Fig, 3 about the shaft 30 it will lift the belt 21 into engagement with the drive pulley 25. This bracket 29 also carries an idler pulley 34 rotatably supported on the axle 35 on the bracket so that as the bracket is rocked clockwise in the opposite direction this pulley 34 will engage the belt and move it clear from the drive pulley 25. At the same time that such movement of the bracket 29 occurs the arm 36 of this bracket which'pivotally supports the brake shoe 31 as at 38 will apply this brake shoe to the drive drum 25 to retard its rotation.

An arm 39 on the bracket is secured to a collar 49 which is slidable upon the rod 4|. This collar is located'between compression spring 42 engaging abutment 43 at one end of the rod and compression spring 44 engaging collar 45 secured to the rod 4|. When the bracket is in a position such that the belt 21 drives pulley 25 and the supply package, the rod 4| will be so raised that spring 44 will urge the bracket 29 counterclockwise to release the brake and cause the V-pulley to push the belt against the driving drum 25 as shown in Fig. 1. In this position the spring 42 will be substantially extended and will exert but little pressure upon the collar 49.

A rock lever 45 is pivoted to the bracket on pin 41, its arm 48 carries a member 49 extending into a position above a disk 59 (see Fig. 1) which is driven by the shaft 22 and provided with notches or recesses This member 49 has a laterally extending portion which will drop into one of the notches 5| if permitted to do so, the movement toward the notches being assisted by a tension spring 52 extending from the end of the arm 48 at the lower portion thereof. A feeler arm 51'] extends downwardly from the member 49 and has a laterally. extending portion 54 against which the yarn 24 engages so as to hold the pivoted lever and the mechanism carried thereby in the position shown in Fig. 1. However, should the yarn 24 break'then the portion 54 against which it engages is permitted to swin and the lever 46, 48, with its member 49 will move so that the portion of the member 49 drops into the notches which are rotating, which rotating member through this mechanism forces the bracket 29 downwardly or clockwise about its pivot 38 so as to cause the pulley 34 to move the belt 21 away from the drum 25 and at'the same time apply the brake 31.

The rod 4| is provided with a foot pedal pivoted at 5|; and connected to the rod as at 51 so that if the rod is in lowered position stepping on the foot pedal 55 will raise the rod so as to reset it and the mechanism which it controls in driving position for the supply package Theoperating mechanism just described is duplicated above the spindle l1 while the yarn 24' is led' over a fixed guide 80 and back of the feeler arm 53', 54' which corresponds to the feeler. 53, 54 just described. The swinging levers 46, 46', are connected together by a bar 52 while 64, 84' and a connecting link 85 which extendssupport 12. The spring 13 serves to swing thev bracket about the pin 1| as a pivot to cause the whirl .16 to engage and be driven by a belt 11 (see Figs. 5 and 6).

The bracket 19 (see Fig. 7) is so shaped as to provide a shoulder abutment 18 with which a block 19 mounted on the rod may engage to swing the bracket about its pivot 1| to withdraw the whirl 16 from engagement with the belt 11.

The rod 80 is actuated by levers 8| pivoted as at 82 and the connected through one arm 83 to the rod 4| while another arm 84 is connected to the rod 88. It will be evident that when the rod 4| is moved to its lower position the bellcrank lever 8| will so rock as tocause the rod 80 to move to the right as shown in Fig. 5 or 7 so that the blocks 19 will engage the shoulder 18 and swing the bracket 10 to move the whirl 18 away from the belt 11.

As the whirl moves away from the belt 11 it moves into engagement with a brake 85 (seems 6) which is suitably supported by an arm 86 extending outwardly from some fixed part of the machine as shown at 81 in Fig. 1 so that the spindle will be quickly brought to rest by a braking action upon severing of the yarn.

The spring 13 may be adjusted as to tension by the ratchet 88 and pin 89 which is also carriedby the arm 86.

The arrangement of the manipulating arms is such that the whirl 16 will engage belt 11 just prior to engagement of the belt 21 with the drum.

25 so that the package |1 will be rotating and maintain some pull on the yarn as the drive of the supply package 23 commences.

I claim:

1. In a ya'rn' handling machine, a supply pack age, a drive drum rotatable therewith and through which the same is driven, a plurality of spindles to which the supply yarn is guided for packaging, a belt adjacent said driving drum, a swinging bracket carrying pulleys on either side of said belt, means to hold said bracketin a position to cause one of said pulleys to maintain the belt in engagement with said pulley to drive the same, means responsive to the breaking of the yarn to move said bracket and cause engagement of the other pulley with the belt to move it from engagement with said drumand a brake.

carried by said bracket for engaging said drum upon movement of the belt therefrom;

2. In a yarn handling machine, a plurality of v supply packages, a driving drum rotatable" with each package and through which each package is driven, a common belt for extending along.the.::;.-. machine for engaging each drum for rotation 1. thereof, a plurality of splndlesto which the yarn;

sponse to the breaking of a yarn end and movesupply packages, a driving drum rotatable with each package and through which each package is driven, a common belt for extending along the machine forengaging each drum for rotation thereof, a plurality ofspindles to which the yarn supply is guided for packaging the same, feeler arms one for engaging each yarn end directed to the supply package is lead, a feeler arm having a portion adjacent said notcheddisk and a portion for engaging the yarn as supplied to hold the same disengaged from said disk, means carrying said feeler arm and actuated by the disk enaging the arm to stop the motion of said drum and supply package driven thereby.

5. In a yarn handling machine, a supply package having a plurality oi yarn ends thereon, a

said spindles to maintain each feeler in certain position, a pivotally mounted bracket with pulleys on either side of said belt movable in response to the breaking of a yarn end and movement of one of the pulleys into engagement with the belt to withdraw the belt from contact with thedriving drum which supplies said broken yam and at the same time applying a brake thereto while leaving undisturbed the other driving drums.

4. In a yarn handling machine, a supply package, a drive drum rotatable therewith and through which the same is driven, a notched disk also rotatable therewith, a belt for driving said drum, a delivery package to which the yarn from drive drum l rotatable therewith and through which the same is driven, a plurality of spindles to which the supply yarn is guided from said supply package for packaging, a belt adjacent said driving drum, a swinging bracket carrying pulleys on either side of said belt, feelers one for engaging each yarn end to maintain each feeler in certain position, means operatively connectedto each feeler to hold said bracket in a position to cause one of said pulleys tov maintain the belt in engagement with said pulle to drive the same, said feelers being responsive to the breaking of the yarn to engage other means and be moved thereby to withdraw said holding means to permit said bracket to be moved and cause engage-- ment of the other pulley with th belt to move it from engagementwith said drum.

ALBERT E. wmsnow. 

